/**
 * Copyright (c) 2016 DeepCortex GmbH <legal@eventql.io>
 * Authors:
 *   - Paul Asmuth <paul@eventql.io>
 *
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License ("the license") as
 * published by the Free Software Foundation, either version 3 of the License,
 * or any later version.
 *
 * In accordance with Section 7(e) of the license, the licensing of the Program
 * under the license does not imply a trademark license. Therefore any rights,
 * title and interest in our trademarks remain entirely with us.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the license for more details.
 *
 * You can be released from the requirements of the license by purchasing a
 * commercial license. Buying such a license is mandatory as soon as you develop
 * commercial activities involving this program without disclosing the source
 * code of your own applications
 */
#include "eventql/util/http/statshttpservlet.h"
#include "eventql/util/stats/statssink.h"

namespace stats {

StatsHTTPServlet::StatsHTTPServlet() : stats_repo_(StatsRepository::get()) {}

StatsHTTPServlet::StatsHTTPServlet(StatsRepository* stats_repo) :
    stats_repo_(stats_repo) {}

void StatsHTTPServlet::handleHTTPRequest(
    http::HTTPRequest* req,
    http::HTTPResponse* res) {
  Buffer buf;

  TextStatsSink sink([&buf] (const String& line) {
    buf.append(line);
    buf.append("\n");
  });

  stats_repo_->forEachStat([&sink] (const ExportedStat& exp) {
    exp.stat->exportAll(exp.path, &sink);
  });

  res->setStatus(http::kStatusOK);
  res->addBody(buf);
}

}
